Sewing-machine for gathering the mouths of tubular structures.



No. 678,542. Patented July IS, IBM. 8. COHN.

SEWING MACHINE FOB GATHERING THE MOUTHS 0F TUBULAR STRUCTURES.

(Application filed June a, 1900.) (No Model.) 3 Sheats-Shaei l.

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No. 678,542. Patented July "5, I901.

, S. CUHN. SEWING MACHINE FOR GATHERING THE MOUTHS 0F TUBULAR STRUCTURES.

(Application filed June 8, 1900.) (No Model.) 3 Sheets-$heat 2.

INVENTOR WITNESSES:

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S. GUHN.

SEWING MACHINE FOR GATHERING THE MOUTHS 0F TUBULAR STRUCTURES.

(Application filed June 8, 1900.) (No Model.)

3 Sheets-Sheet 3.

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SAMUEL GOlIN, on NEW YORK, N. Y.,

ASSIGNOR OF ONE-HALF TO AUGUST .CAPLAN, OF SAME PLACE.

SEWlNG-MACHINE FOR GATHERING THE MOUTHS OF TUBULAR STRUCTURES.

SIPEGIFICATION forming part of Letters Patent No. 678,542, dated July 16, 1901.

Application filed (Tune 8, 1900.

T ctZZ whom, it may concern.-

Be it known that I, SAMUEL COHN, a citizen of the United States, residing in the city, county, and State of New York, have invented certain new and useful Improvements in Sewiug-lviachines for Gathering the Mouths of Tubular Structures, of which the following is a specification.

My invention relates to sewing-machines, IO and has for its object to produce a sewingmachine adapted for the sewing of the mouths of bags and other analogous uses, although my invention is not limited to the character of work for which the machine may be employed.

The invention will be described with reference to the accompanying drawings, which show by way of illustration a machine embodying my invention.

1n the drawings, Figure 1 is a side elevation of the machine. Fig. 2 is a plan View thereof; Fig. 3, an end elevation of the machine, showing the grasping-jaws open; and Fig. 4 is a similar end elevation of the ma chine showing the jaws closed.

The machineshown in the drawings, which is merely one of the various forms and structures in which my invention may be embodied, preferably consists of a suitable base a,

upon which are mounted standards I) b 11 Pivoted in these standards by pivots c are jaw carrying arms at, which jaw-carrying arms are provided with pins 6 at or near their lower-ends which enter slotsfof a cam-plate g,

5 carried upon the main operating-shaft h of the machine. ilhejaw-carrying arms cZ carry suitable grasping jaws or carriersz' j. (Best seen in the plan view, Fig. 2.) The jaw e'is provided with suitable teeth t with intervening de- 40 pressions, and the jawj is provided with suitable teeth j with intervening depressions These teeth are provided with slots e in the case of the teeth 11 and j in the case of the teeth 7' Mounted upon the framework of the machine-to wit, the standards I? b -is a suitable toothed member or folder 70, having at both sides thereof teeth k with which mesh the teeth 2' of the jaw t'and the teeth 9' of the 5o jawj. The said teeth are slotted, as shown at 7.2 which slots come opposite the slots 2' in jaw 41 and slots j in the jaw j, so as to leave the folder.

seen in. 19,548. (No model.)

a clear passage between the jaws and the toothed member or folder for the passage of needles. In the present instance I have shown two needles Z, which are adapted to pass through the slots and the teeth of the jaws and toothed member or folder. These needles are preferably removably carried upon a suitable needle-carrier m, which is adapted to slide upon guides orguide-rods 0, carried on the framework of the machine between the standards 19 and Z). An adjustable guide-platep is provided upon the guide-rods, which guide-plate is suitably slotted to form a guide for the points of the needles. The needle-carrier m is pivotally connected to a bell-crank lever g, which is pivoted at r upon a bracket 8, and is pivotally connected by means of a suitable link If to an arm n, carried upon the main shaft of the machine. When the jaws are open, as shown in Fig. 3, the arm to is in such position that the link i is on a dead-center, so that as the shaft h turns the jaws willhe closed beforethe needlecarrier begins to move.

The operation of the structure is as follows: A bag-mouth with a suitable hem turned up is placed over the toothed member or folder 7c. The operating-handle n or other operat- 8o ing means is turned toward the right in Fig. 3, thereby rocking the shaft h and causing the cam-slots f in the cam-plate g to close the jaws firmly against the toothed member or folder 7c. While this operation is taking place the link i is being swung idly on the pivot w, which forms its pivotal connection with the bell-crank lever q, it being remembered that the link tis on a dead-center in Fig. 3, so that some lost motion will take place while the jaws are being closed against The jaws closing upon the bagmouth force the same into an undulating shape between the opposing meshed faces of the teeth 1' k and 7.0 As the operating means I) continues to move the needles will be moved forward by the needle-carrier, will enter the slots of the jaws and folder, and will pass through the undulating portions of the fabric. TVhen the needles have been en- I00 tirely inserted, their points and eyes will extend beyond the faces of the jaws and folder, Where a suitable thread may be inserted through the eyes of both needles either by hand or by suitable mechanism. The rock shaft It will then be swung in the oppositedirection, thereby drawing the needles backward through the work to draw the thread through the work. In their passage the walls of the eyes of the needles will be forced toward each other, thereby diminishing the size of the eye and gripping the thread to draw the same into the fabric. After the needles have completed their movement the jaws will be opened automatically by the cam-slots f, operating upon the jaw-carrying arms 61. The thread may be severed by any suitable means after the needles have disengaged themselves from the fabric.

Having described my invention, what I claim, and desire to secure by Letters Patent, 1s-- 1. In a special sewing-machine the combination of a member provided with teeth or corrugations on opposite sides thereof, movable carriers having teeth or corrugations adapted to mesh with the teeth or corrugations of the member 70, means for simultaneously meshing the teeth or corrugations'of any individual carrier with the member 70, and needle mechanism for eifecting the sewing.

2. In a special sewing-machine, the combi nation of slotted means for maintaining a fabric in a waved or u ndulated condition and a sewing-needle running in the slot having an eye whose walls are resilient and adapted to be bent by contact with the slot during the passage of the needle through the said slotted means in order to firmly grasp the thread by the walls of the needle-eye.

3. In a special sewing-machine, the combination of a toothed member having teeth on opposite sides thereof, a plurality of movable carriers each provided with a series of teeth adapted to cooperate with the toothed member on opposite sides thereof and to be moved simultaneously, means for moving the carriers and means for passing a needle into the work operated by the carrier-moving means.

4. In a machine for providing an openmouth fabric structure with a shirring-string at a single operation, the combination of a toothed member 70 having corrugations or teeth on opposite sides thereof,a carrier one on each side thereof having a series of slotted teeth or corrugations cooperating with the teeth or corrugations of the toothed member and means for moving the said carriers,whereby the teeth of the carriers are simultaneously meshed with the teeth of the toothed member and a sewing'means for passing a shirring-thread through the work.

5. In a special sewing-machine, the combination of a toothed member having teeth on opposite sides thereof, oppositely placed toothedjaws, cam mechanism for simultanebetween the lever mechanism and the means for moving the jaws.

6. In a special sewing-machine, the combination of a toothed member having teeth on 70 opposite sides thereof, pivoted toothed jaws adapted to mesh therewith, a slotted camplate for swinging the pivoted jaws, needle mechanism and means for directly driving the needle mechanism.

7. In a machine for inserting shirringstrings in tubular fabric structures, the combination of a toothed member is having corrugations or teeth on opposite sides thereof, a pair of pivoted jaws provided with teeth or corrugations adapted to engage with the teeth or corrugations of the toothed member, a needle mechanism and means whereby the teeth of the carriers are simultaneously meshed with the teeth of the toothed member, comprising a shaft provided with cam means for swinging the pivoted jaws and with means for operating the needle mechanism.

8. In a machine for inserting shirringstrings in tubular fabric structures, the combination of a toothed member 70 having corrugations or teeth on opposite sides thereof, a pair of pivoted jaws provided with teeth or corrugations adapted to engage with the teeth or corrugations of the toothed member, a needle mechanism and a shaft, a slotted camplate carried by the shaft for operating a jaw and a connection between the shaft and the needle mechanism.

9. In a sewing-machine, the combination of a toothed member 7a having teeth on opposite sides thereof, a pair of corrugated fabric gathering or crimping jaws with actuating means therefor whereby the fabric may be crimped or gathered at a single operation, needle mechanism, and means whereby the teeth of the carriers are simultaneously meshed with the teeth of the toothed member, comprising a rock-shaft serving as a common operating means for the jaws and the needle mechanism.

10. In a sewing-machine, the combination of a toothed member 70' having teeth or corrugations on opposite sides thereof, a pair of toothed or corrugated fabric gathering or crimping jaws with actuating means to simultaneously mesh the teeth or corrugations of an individual jaw with the toothed menu-- ber whereby the fabric may be crimped or gathered at a single operation and a needle mechanism.

11. In a machine for gathering the open mouth of a tubular or like structure, the combination of a slotted folder 7a, a plurality of movable toothed or corrugated carriers meshing therewith on different sides thereof and means for simultaneously meshing the teeth of any individual carrier with the folder.

SAMUEL (JOHN.

Witnesses:

GEO. E. MORSE, Or'ro V. SCHRENK. 

